Chiwombankhanga kapena "hromakey" chikugwiritsidwa ntchito powombera m'malo mwake. Mfungulo wa chroma ukhoza kukhala mtundu wosiyana, monga buluu, koma wobiriwira amafunidwa pa zifukwa zingapo.
Inde, kuwombera pamtundu wobiriwira kumachitika pambuyo pa kalembedwe kake kapena kawonekedwe.
Mu phunziro ili tiyesa kuchotsa mwatsatanetsatane zobiriwira kuchokera ku chithunzi ku Photoshop.
Chotsani zobiriwira
Pali njira zingapo zochotsera maziko kuchokera pa chithunzi. Ambiri a iwo ali onse.
Phunziro: Chotsani chida chakuda mu Photoshop
Pali njira yomwe ili yabwino kwambiri kuchotsa chromakey. Tiyenera kumvetsetsa kuti ndi kuwombera kotereku kungapezenso mafelemu oipa, kugwira ntchito zomwe zidzakhala zovuta kwambiri, ndipo nthawi zina zosatheka. Phunziroli, chithunzithunzi cha msungwana wobiriwira chinapezeka:
Timayambitsa kuchotsa chromakey.
- Choyamba, muyenera kutanthauzira chithunzichi mu malo a mtundu. Lab. Kuti muchite izi, pitani ku menyu "Mafilimu" ndipo sankhani chinthu chomwe mukufuna.
- Chotsatira, pitani ku tabu "Channels" ndipo dinani pachitsulo "a".
- Tsopano tikufunikira kupanga kanjira iyi. Ndili ndi iye yomwe tidzakhala tikugwira ntchito. Timatenga chingwecho ndi batani lamanzere ndikukakamira pazithunzi pansi pa pulogalamu (onani chithunzi).
Peyala yachitsulo mutatha kupanga kopi iyenera kuwoneka ngati iyi:
- Chinthu chotsatira ndicho kupereka kanthano koyerekeza kwambiri, ndiko kuti, chiyambi chiyenera kukhala chakuda kwambiri ndipo msungwana woyera. Izi zimapindula mwa kupatula njira yodzaza njirayo ndi mtundu woyera ndi wakuda.
Dinani kuyanjana kwachinsinsi SHIFANI + F5ndipo zenera zowonjezera zowonjezera zidzatsegulidwa. Pano ife tikusowa kusankha mtundu woyera mu mndandanda wotsika pansi ndikusintha mtundu wofanana "Kuphatikiza".
Pambuyo pakanikiza batani Ok timapeza chithunzichi:
Ndiye timabwereza zomwezo, koma ndi zakuda.
Zotsatira za kudzazidwa:
Popeza zotsatira zake sizingatheke, timabwereza nthawi, nthawi ino kuyambira ku wakuda. Samalani: choyamba mudzaze njirayo yakuda ndikuyera. Nthawi zambiri, izi ndi zokwanira. Ngati zotsatirazi zitachitika, chiwerengerocho sichikhala choyera, ndipo chiyambicho ndi chakuda, kenaka chibwerezeninso ndondomekoyi.
- Njira yomwe takonza, ndiye mukufunika kupanga pepala lachiyambi pazigawo zachindunji ndi njira yachinsinsi CTRL + J.
- Bwererani ku tabuyo ndizitsulo ndikuyambitsa kanjira. a.
- Gwiritsani chinsinsi CTRL ndipo dinani pa chithunzi cha kanjira, pangani malo osankhidwa. Kusankhidwa kumeneku kudzasintha mtundu wa mbeu.
- Dinani pachitsulo ndi dzina "Lab"kuphatikizapo mtundu.
- Pitani ku chigawo chachindunji, pamalopo, ndipo dinani chizindikiro cha mask. Maonekedwe obiriwira amachotsedwa nthawi yomweyo. Kuti muwone ichi, chotsani kuonekera kuchokera pansi.
Halo Removal
Ife tachotsa zobiriwira, koma osati kwenikweni. Ngati mutayang'ana, mukhoza kuona malire obiriwira, omwe amatchedwa halo.
Mafilimuwa amatha kuonekera, koma ngati chitsanzocho chimaikidwa pachiyambi chatsopano, chikhoza kusokoneza chiwerengerocho, ndipo ndikofunikira kuchotsa.
1. Gwiritsani ntchito chigoba chosanjikiza, gwiritsani CTRL ndipo dinani pa izo, ndikusaka malo omwe mwasankha.
2. Sankhani zida zonse za gululo. "Yambitsani".
3. Kusintha zosankhidwa zathu, gwiritsani ntchito ntchitoyi "Konzani Edge". Bokosi lofanana ndilo liri pamwamba pamwamba pa magawo.
4. Muwindo lazintchito, sinthirani zosankhidwazo ndi kutulutsa "makwerero" a pixelisi pang'ono. Chonde dziwani kuti mosavuta, mawonekedwe awonedwe aikidwa. "Oyera".
5. Ikani zotsatira "Wosanjikiza watsopano ndi maski wosanjikiza" ndipo dinani Ok.
6. Ngati atachita izi, malo ena amakhala obiriwira, akhoza kuchotsedwa pamutu ndi bulashi yakuda, kugwira ntchito pa maski.
Njira yina yothetsera halo ikufotokozedwa mwatsatanetsatane mu phunziro, kulumikizana kwa zomwe zafotokozedwa kumayambiriro kwa nkhaniyo.
Potero, tapambana kuchotsa zobiriwira mu chithunzi. Ngakhale kuti njirayi ndi yovuta, imasonyeza bwino ntchito yogwiritsira ntchito njira pochotsa magawo a chithunzi cha monochromatic.
